Coke-oven.



No. 833,340. PATENTBD 00T. 16, 1906.

' M. E. ROTHBBRG & A. ERNST.

COKE OVEN.

APPLICATION IILED MAR. 10. 1906.

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COKE 0 VEN.

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No. 833,340. PATENTED OCT. 16. 1906. M. E. ROTHBBRG & A. ERNST.

COKE OVEN.

APPLIUATION FILED MAE. 1o. 190e.

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UNITED STATES j PATENT QEEIGE MATHEW E. ROTHBERG AND ALFRED ERNST, OF CLEVE'lJAND, OHIO.

COKE-OVEN.

Specication of Letters Patent.

Patented Oct. 16, 1906.

Application filed March 10,1906. Serial No. 305,351.

To all whom it may concern:

Be it known the we, MATHEW E. ROTH- BERG and ALFRED ERNST, citizens of the United States, and residents of Cleveland, in the county of Cuyahoga and State ofOhio, have made a certain new and useful Invention in Coke-Ovens; and we declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure 1 is a section on the line 1 1, Fig. 2, the ovens being shown in full lines. Fig. 2 is a section on the line 2 2, Fig. 1. Fig. 3 represents vertical longitudinal half-sections taken, respectively, through the cokingchamber A and throu h the heating-nuesA in thepartition-walls. ig. 4 is a plan view of the stack end of the battery of ovens. Fig. 5

is a plan view, partly in section, illustrating the modification of our invention. Fig. 6 is a section on the line 6 6, Fig. 5.

The invention relates to coke-ovens of the regenerative type, having for its object the provision of a continuous supply of heated air to the combustion-chambers of the ovens by reversing the flow of waste gases used for heating the regenerators and the iiow of cold air outside of the ovens proper, thus preventing injurious shocks to the brickwerk of the ovens, which cause the develo ment of cracks in the same and ultimate ylead to loss of gas.

With this object in view the invention consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the letter z designates the foundation of a battery of ovens a b c d.

F is the main iiue,- extending longitudinally of the battery of ovens in the foundation thereof and having openings A in its top wall communicating with the oH-gas flues of the ovens. This flue F extends beyond the batteryiof ovens at one end thereof, where it is provided with a butteriy-valve V', controlling the communication of the ilue F', with flanking regenerator-chambers R R2 at These regeneratorchambers project beyond the ovens at each end and beyond the ue F at one end into communication with the stack S, the opening to which is controlled by a butteriiy-valve l V4, which cuts off one chamber from commu- Iication with the stack, while it throws the other chamber into communication therewith in an alternate manner.

B5 is a fan located outside ofthe oven-battery between the stack S and the termination of main flue F at one end of the ovens and which, through the passage B, communicating with flues H in the iioors of the ovens, establishes a circulatipnofa'ir, blowing the same through themedium of butterfly-valve V2V into one Ver'idofthe regeneratorchambers R R2 alternately and through the medium of a similar valve Va controlling the communication of the other ends of said chambers with hot-air iiues Fz Fa alternately from said chambers into the hot-air flues, which are larranged longitudinally in the oven-fo undation laterally of the regeneratorchambers, and have connection by openings C D with the combustion-chambers of the ovens, where the hot air meets the gas-sup- The oven to which our invention is shown applied is that of the patent granted to M. E. Rothberg, No. 804,053, dated November 7, 1905, in which Dis the hot-air inlet-chamber under the reverting heating-dues B B2 B3 B4 in the side Walls of the oven-chambers. Each chamber D communicates by openings N with the combustion-chamber C of the oven A', located under the same, along which the heated air passes, being at the same time mixed with the gas from the burner X, branching from the gas-feed pipe W. Near the center of the oven the heated air and gas pass through the short transverse fiue B7 to the series of heating-nues B BZ B3 Bf, and therefrom the products of combustion pass down throu h thevertical flue F to the main off-gas iue leading to the stack.

In Figs. 5 and 6 of the drawings is shown a modification of our invention in which but two valves Y and Y are employed to effect the sameesltL/v Having thus described our invention, what we claimas new, and desire to secure by Letters Patent, is-

1. In an oven, having heating-fines in its walls, and a combustion-chamber in connection therewith, means for continuously withdrawing the waste ases of combustion in the same direction om said heating-flues, means located beneaththe oven for continuously supplying air in the same direction to said combustion-chamber, and means lo- IOO IIO

cated beneath the oven and disposed right angles to Vthe oven-chamber -for continuously heating the air-supply4 through the Waste gases of combustion.

2 In a coke-oven having reverting heatingflues in its side Walls and a combustion-chamber in connection therewith located under the coking-chamber, means for-continuouslyi withdrawing the Waste gases of combustion in lthe same direction from said `he'ating-flues, means-'located beneathlthe' oven for continu-I ously'supp'lying air in the same ldirection to f said combustion-chamber, 2 and v f lmeans i lo-' cated 'beneathlthcf ovenand disposed at right angles to th'ef oven-chamber for continuouslyr heating'- the air-supplyl through: said -Waste gases.- :1

3. I' Inanoven having la combustion-cham-. ber,"a pair of Lregenerator-chambers, air-sup' ply passages to i the. combustion-chamber ol I the oven, 'means' forl conducting ya supply of air kthr'ough one .of saidl-re enerator-chambers'fandif-thence throu hr' othair-supply passages, fmeansfor simu taneouslgT 'conduct ing lthel .waste gases-ot combustion through ther-:other OfSaid-chamberS; andfmeans for changing the: -floW ofi air 'and '-Wastegases from` each' off said 1- chambers ito fthe other chamber.A

4. y'Inlovens having. combustion-chambers, a pair iof reUenerator-chambers, :air-supply passages to the combustion-chambers of the ov'ens,'-meansl fon conducting la supply of fa'ir through one 1-of said '--regeneratorchambeis and thence through bothlairi-suppl 'passagesjl andlfmeansx fory alternatinglfthe fflow of air.

through the regeneratocha'mbe'rs.:

5. fA coke-oven having heating-Hues in its vvallsbiprovided` l=vvithicombustion-chambers, ain-:supply vpassages--to said combustionchambers ,-'horizontal megenerating-chambers disposed-at: rightangles to: the oven-cham berzand lr'espectively 71n connection AWith said air-supplypassages and with said combus. tionfchambers, meansl'forcontinuously With-r the# Waste products fof combustion in=the same direction from said heating-nues alternately throughsaid A regeneratorcham bers-ftoffthe stack',i means for lcontinuously conducting airwinthehsame direction alter-l na-telyl through "the regeneratin chambers tothe combustionchambers, an meansor alternatingthewiow ofvair. and Waste gases throu h the regenerating-Chambers.A

6. nf cokesovens, the? f combination of a central main Y' flue f having communication With the off-gas flues of the ovens; lateral re^ generator-chambers parallel toi and having communication Withsaidcentral flue at one end,- a stack-flue havin communication With said regenerator-cham e'rs =at ther-other end of the! same, means-for deflectin the: flow of gasesf through -said 'main lu'e omone of said chambers `to the other, and means for controlling the communication of the re- 65 generator-chambers with the stack-flue.

7. 'In coke-ovens, the 'combination of a centralmain flue having communication withA the off-gas iiues of the ovens, lateral regenerator-chambers having communication 7o with said central flue at one end, a stack-flue having communication with said regeneratorchambers at the other end of the same, lateral hot-air flueshaving communication with' "v said regenerator-chambers at one end there- 75 of, a fan having an air -supplyand -an eX-V haust communication with said chambers 'at the other end of the same, meanslfor deilectl -ingthe flow of (gases through said main flue yfrom one of said chambers tothe' other andv 'for controlling the communication of said 85 chambers with the' stack-flue- 8. In coke-ovens, the'icombination of re#l generator-chambers, lateral hot-airflues hav' ing communication with saidVchambers-#at--f onelend thereof, a fan=having -an air supply 9o andv -an` vexhaustcommunication withl Isaidi chambers at vthe other end of thesameymeans -for delectin the exhaust from -said rfan fromf:

onel of said c ambers to the other, land means for controlling the communication l of-said1=95 chambers With the. hot-air lines.-

9. In coke'ovens,the':combination-of a J central main iiuez r having'- 1 i communication With= thev off-gas fluesofthe ovens,1late1al-re generator-chambers parallel --to and having roo communication -With said-central flue ationem end, a stack-flue having communication With said-chambers yat the other end ofthe same, valved means-located'outside the. ovens fior' controlling the communication -of1said:mainw1o5 iiue with said chambers, and valved='-means1=--` located outside the ovens for controlling thecommunication l 'ofv said chambers Zwith? Ithe *ff stack-flue.

10. In coke-ovens having of-gas-flu'es, the I 1o Vcombination of -a central'-.main=iuefhavingu` communication with said oil-gas flues, latex-a regenerator-chambers having -communication with-said central flue atfone end thereof; ff' a stack-flue having communication .Withisaid .I I 5 i regenerator-chambers atfthe other end of the cation With-said regenerator-chambers atlonef chambers with. the hot-air flues, and =valved means locatedoutside ythe ovens-foi deflect-'- said chambers to the other, and for controlling the communication of said chambers with the stack-flue.

11. In coke-ovens, the combination of regenerator-chambers, lateral hot-air iues having communication with said chambers at one end thereof, a fan having an air supply and an exhaust communication with said chambers at the other end of the same, valved means located outside the ovens for controlling the exhaust communication of said fan with said chambers, and valved means located outside the ovens for controlling the communication of said chambers with the hot-air ue.

l2. In an oven having a combustion-chamber7 a pair of regenerator-chambers, air-sup- 

